Evaluating [ tests compiler-tests ] time in the UI listener - the unit tests themselves include a lot of performance-intensive code, and this also measures how fast the UI can relayout and redraw, since the tests generate a lot of output.

The results were interesting. The best result in each row is shown in italics.

Pentium 4

AMD64

MacBook Pro

PowerMac G5

Bootstrap (mins:secs)

4:56

4:40

4:38

6:19

Fibonacci (ms)

360

320

470

830

Mandelbrot (secs)

3.3

2.8

2.4

5.4

Raytracer (secs)

18

21

18

42

Unit tests (secs)

24

22

20

38

The results indicate there is a lot more work to do on the PowerPC compiler backend. The Core Duo's good performance is rather surprising.